| 摘要 |
PURPOSE:To extremely decrease the number of lines, and to sharply shorten an expanding time by expanding a line segment by using starting edge points and ending edge points positioned at an outer peripheral part, among the starting edge points and the ending edge points corresponding to a designated linear width. CONSTITUTION:When the line width of four dots is designated, a unit line segment ln is constituted only of twelve starting edge points Pn and ending edge points Qn prepared at the outer peripheral part, among the fifteen starting edge points Pn and ending edge points Qn prepared in the surroundings with a starting edge point Po and an ending edge point Qo, corresponding to a starting point position and an ending point position, as a center. That is, only the starting edge point Pn(ending edge point Qn) indicated by black spots positioned at the outer peripheral side can be the object of the unit line segment ln. When the number of the dots of the linear width is defined as N, the lines of the unit line segment is 4(N - 1), and further less than the number N<2> of the normal line segment. And also, even at the time of preparing the line segment is proportional to N<2> and to N as mentioned above, and a remarkable effect is shown especially when the linear width is large. Thus, the number of lines can be decreased, and the expanding time can be remarkably shortened. |
